Pump



Aug- 5, 1930. T. .1. FLANAGAN PUMP FilgdJan. 11, 1927 2 Sheets-Sheet 1 11 7M Mm Aug. 5, 1930. I T. J. FLANAGAN 7 ,1 I

. PUMP Filed Jan. 11, 1927 2 Sheets-Sheet "2 Fatented Aug. 5, 1 936 UNITED s'rarss PATENT OFFICE THOMAS JAMES FLANAGAN, or TULSA, OKLAHOMA, essrenon To 'GASO' rtnvrr Ann BURNER mnnnrncrnnrne COMPANY, or TULSA, ontanoira, A CORPORATIO OF OKLAHOMA Application-filed January 11, 1927. Serial no. 160,489.:

"I in the provision of a worm drive for a pump of this character whereby the number of gears formerly used in said pumps may be greatly reduced.

Another object ofthe invention resides 1n forming the cross head cylinder and the lower half of the combined crank case and gear housing of a single casting and providing integral bearing portions, for the crank shaft, on the lower half of the combined crank case and gear housing.

A further object consists in forming the crank shaft, intermedlate its ends, with a relatively large flange to which a ring gearv may be detachably connected, it being understood that all of the gears, as well as other working parts operate in an oil bath within the comblned crank case and gear housing,

the teeth of the ring gear acting as buckets to carry the oil upwardly to be further distributed', by splashers, to all working parts of the pump.

WVith the above and other objects in view, which will appear as the description proceeds, my invention consists in the novel de tails of construction, and arrangement of parts, described in the following specification and illustrated in the accompanying drawings, and while I have illustrated and described the preferred embodiments of the invention, as they now appear to me, it will be understood that such changes may be made as will fall within the scope of the appended claims.

In the drawings:

Fig. 1 is a top plan with a portion of the upper half of the combined crank case and gear housing broken away.

Fig. 2 is a side elevation with a part of the upper half of the combined crank case and gear housing broken away.

Fig. 8 is a longitudinal vertical section through the cross head cylinder and combined crank case and gear housing with parts shown in side elevation.

Fig. 4 is an end view of the crank shaft with its associated flange, and

Fig. 5 is a longitudinal vertical section through the crank shaft, flange, and ring gear. I

In the drawings 1 indicates a base adjacent one end of which is supported the pump cylinders 2 of well-known construction. and adjacent the opposite end of which is supported an electric motor 3 having the shaft l projecting from one end thereof. Supported on the base 1, between the pump cylinders and electric motor, is the combined crank case and gear housing. This combined case and housing includes the lower half or section 5 and the upper half or cap 6, the

upper half being secured to the lower half by means of the bolts 7 or other suitable fastenings. The lower half 5 at the bottom is formed with the well or depressed portion Sand aligned openings 9 and 10 communicate with the well, from opposite sides, as shown more particularly in Fig. 3 of the drawings. Formed integral with the. lower half of the case or housing are a pair of parallel cylinders 11 in each of which operates a cross head 12 as shown more particularly in Fig. 3.

Secured to each of the cross heads 12 is one end of apiston rod 13 the opposite end being connected to a piston operable in the pump cylinders 2. The piston rods 13 operate through stnffing boxes 14 secured to the ends of the cylinders 11.

Bearings 15 are formedintegrally with the combined crank case and gear housing and support the ends of the crank shaft 16 having the crank portions 17 and 18. set at a angle. Bearing plates 19 are placed over the upper surface of'the crank shaft, adjacent each end, and are secured to the bearings 15 by means of the bolts 20 or other suitable fastenings. Connecting rods 21 are connected to the crank portions 17 and 18 and to the cross heads 12 operable in the cylinders 11. A relatively large flange 22.is formed integrally with the crank shaft 16, between the crankportions 17 and18, and has at one side edge an outwardly extending portion or lip 23 as shown more particularly in Fig,

extension or lip 23 to which it is secured by means of the bolts 25 or other suitable fasing bearings formed on the upper surface tenings. The heads 26 of the bolts 25 are provided with transversely extending openings and wire 2''? is passed through these openings with its ends connected at the point 28. This wire serves to hold the bolts against accidental displacement.

A shaft 29 extends through the opening 10 adjacent the bottom of the crank case and gear housing and is supported by the ballbearings 30 and 31. A plate 32 is secured to the casing or housing by means of the bolts 33, forms a closure for the opening 10 and holds the ballbearings 31 in position. The end of the shaft 29 passes through the stufing boX 34 and is connected to the shaft 4 of the electric motor 3 by means of-the coupling 35. A cap or plate'36 is secured to the casing or housing by means of the bolts 37 and forms a closure for the opening 9. Access may be gained to the end of the shaft 29 and its supporting bearing by removing the plate or cap 36. A worm gear 38 is carried by the shaft 29 and meshes with the ring gear 24.

"'From the above detailed description it is thought that the construction of my pump will be clearly understood as well as the mode of operation. The electric motor 3 will drive the shafts 4 and 29 and through means of the gears 38 and 24 rotate the crank shaft 16 which through means of the connecting rods 21 reciprocate the cross heads 12, the piston rods 13, and the pistons within the cylinders 2. By providing the worm gear drive I employ the minimum number of gears possible and do away with a great many gears now ordinarily used in a pump of the character described. At the same time the ring gear 24 is secured to the crank shaft in a novel manner and the crank shaft is supported by the bearings which are forced integral with the lower half of the combined crank case and gear housing. Oil is placed in the crank case and gear housing and all parts contained therein operate in an oil bath. The teeth of the gear 24 act as buckets in carrying oil to the top of the crank case and gear housing where it is distributed by splashers to all working parts of the pump.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is: J v

l. A pump of the character described including a combined crank case and gear housing having a cylinder formed integral therewith, .said crank case and gear housing 'hav ing an opening providing side portions havthereof and positioned inwardly of the outer surfaces, said bearings being open at the top, a crank shaft removably and rotatably supported in the bearings with its ends covered by the sides of the case and housing, bearing plates detachably connected to said side portions and overlying the shaft within the sides, a gear carried by the shaft, a cover detachably connected to the crank case and gear housing for closing the opening therein and enclosing the gear, the bearings and bearing plates, and means engageable with the gear for rotatingv the shaft.-

2. A pump of the character described including a combined crank ease and gear housing having a cylinder formed integral therewith, said crank case and gear housing being open at the top forming sides with bearings on the upper edges and a well being formed in the bottom with openings at opposite ends extending to the exterior of the case or housing, a crank shaft removably sup ported in the bearings at the upper edges of the sides, a gear carried by the shaft, a second shaft extending longitudinally of the openings at the ends of the well in the case or housing, a gear carried by said second mentioned shaft and inmesh with the gear carried by the first mentioned shaft, said gear carried by the second mentioned shaft being positioned in the well, a cover detachably connected to the case and housing for closing the openin and means for rotating b the second mentioned shaft.

THOMAS JAMES FLANAGAN. 

